/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */
package org.apache.metron.profiler.spark.function.reader;

import org.apache.spark.api.java.function.FilterFunction;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;

/**
 * A filter function that filters out invalid JSON records.
 */
public class IsValidJSON implements FilterFunction<String> {

  @Override
  public boolean call(String text) throws Exception {
    JSONParser parser = new JSONParser();
    JSONObject json = (JSONObject) parser.parse(text);

    // all of the test data has at least 32 fields in each JSON record
    return json.keySet().size() >= 32;
  }
}
